CN212562032U - Take entrance to a cave superimposed shear wall to go out muscle connected node structure in side of indulging and violently wall - Google Patents

Abstract

The invention discloses a rib-outlet connecting node structure of the side surfaces of longitudinal and transverse walls of a superposed shear wall with a hole, wherein a prefabricated edge component stirrup of a prefabricated wall with the hole adopts a combined stirrup, an opening stirrup of the combined stirrup stretches into a vertical post-pouring section connected with the prefabricated wall through a cavity of the prefabricated wall after being bent, and the connection between the prefabricated wall with the hole and the vertical post-pouring section at the position of the connecting node of the longitudinal and transverse walls is realized by means of the opening stirrup. According to the prefabricated wall with the opening, special horizontal connecting steel bars do not need to be arranged in the cavity, the problem that the horizontal connecting steel bars and vertical steel bars of edge components of the prefabricated wall with the opening in the existing structure are interfered with each other can be solved, and a vibrating space can be ensured when post-cast concrete is poured in the cavity of the edge components of the prefabricated wall with the opening; meanwhile, the side face is provided with the ribs, so that the side wall die opening of the prefabricated wall can be avoided, the standardization and the universalization of the prefabricated wall die are facilitated, the alignment problem of the side face ribs and the side die can be avoided, and the production efficiency of the prefabricated wall can be improved.

Description

Take entrance to a cave superimposed shear wall to go out muscle connected node structure in side of indulging and violently wall

Technical Field

The invention belongs to the technical field of buildings, relates to a superposed shear wall, and particularly relates to a longitudinal and transverse wall side bar-outlet connecting node structure of a superposed shear wall with a hole.

Background

The superposed shear wall has low requirements on processing and mounting precision, can effectively reduce the connection cost of the prefabricated wall, has controllable connection quality, is a fabricated concrete structure system which meets the current Chinese situation, and has a representative system of a double-faced superposed shear wall structure.

In the double-sided superposed shear wall structure, longitudinal and transverse prefabricated walls are connected through a vertical post-pouring section, particularly in north-south vertical surfaces of residential buildings, a large number of prefabricated walls with holes exist, one side wall limb is shorter in length and much shorter than 800mm, the prefabricated walls can be disassembled by arranging a prefabricated edge component, the prefabricated edge component of the prefabricated wall with the holes is directly connected with the vertical post-pouring section, horizontal connecting steel bars need to be arranged in cavities of the prefabricated wall with the holes in the existing node structure to realize the connection between the prefabricated wall with the holes and the vertical post-pouring section, the connecting steel bars need to be arranged in the cavities of the prefabricated edge components of the prefabricated wall with the holes to be in lap joint with the vertical steel bars of the prefabricated wall inner edge components, so that the net distance between a horizontal connecting steel bar skin in the lap joint range of the vertical steel bars of the prefabricated wall inner edge components is only 30mm, and the net distance between the horizontal connecting steel bar skin and the inner side of a prefabricated wall concrete wall slab is only, the concrete vibrating rod cannot be inserted into the cavity, the post-cast concrete cannot be vibrated, and the cost is high due to the fact that self-compacting concrete is adopted on a large scale in actual engineering.

Disclosure of Invention

In order to overcome the defects of the connecting node structure of the longitudinal and transverse walls of the existing superposed shear wall with the opening, the invention aims to provide a connecting node structure for leading out ribs from the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening, the longitudinal and transverse wall connecting node of the superposed shear wall with the opening is connected with the vertical post-pouring section through the steel bar extending out of the side surface of the prefabricated wall with the opening, no special horizontal connecting steel bar is required to be arranged in the cavity of the prefabricated wall with the opening, the problem that the horizontal connecting reinforcing steel bars and the vertical reinforcing steel bars of the edge component inside the cavity of the prefabricated wall with the opening in the prior structure are mutually interfered can be avoided, the vibration space can be ensured when the post-cast concrete is poured in the cavity at the edge member position of the prefabricated wall with the opening, the quality control of the post-cast concrete at the edge member position of the prefabricated wall with the opening is facilitated, the construction quality of the key stress position of the structure is ensured, and the anti-seismic performance of the structure is improved.

In order to achieve the purpose, the invention adopts the technical scheme that:

a side face reinforcement-outlet connecting node structure of a longitudinal and transverse wall of a superposed shear wall with a hole mainly comprises a prefabricated wall with a hole 1, a prefabricated wall without a hole 2 and a vertical post-pouring section 3, wherein the prefabricated wall with the hole 1 and the prefabricated wall without the hole 2 both comprise two layers of prefabricated concrete wall boards 14, and a cavity 15 is formed between the two prefabricated concrete wall boards 14, the side wall with the hole 1 is provided with a prefabricated wall edge component area 11 on one side of the hole and is directly connected with the vertical post-pouring section 3, a prefabricated wall edge component stirrup 116 of the prefabricated wall with the hole 1 adopts a combined stirrup, an opening stirrup 113 of the combined stirrup extends into the vertical post-pouring section 3 through the cavity 15 after the end part of the prefabricated wall with the hole 1 is bent, the connection of the prefabricated wall with the hole 1 and the vertical post-pouring section 3 at the connecting node position of the longitudinal and transverse wall is realized by the extending section of the opening stirrup 113, and no horizontal connecting reinforcement needs to be arranged in the cavity 15 of the prefabricated wall with the hole 1, the problem of horizontal connecting reinforcement and the additional connecting reinforcement of the vertical reinforcing bar of the prefabricated wall cavity inward flange component of area entrance to a cave mutual interference in the current structure is avoided.

The opening end of the opening stirrup 113 is positioned in the vertical post-pouring section 3, the opening end of the opening stirrup 113 extends into the cavity 15 from the inner wall of the precast concrete wall panel 14 at the inner side of the end part of the side edge of the prefabricated wall 1 with the opening, extends into the vertical post-pouring section 3 through the cavity 15, and does not directly extend into the vertical post-pouring section 3 from the side surface of the precast concrete wall panel 14, so that no hole is formed in a side mold in the production process of the prefabricated wall, the standardization and the universalization of a prefabricated wall mold are facilitated, the problem of alignment of the opening stirrup 113 and the side mold can be avoided, and the production efficiency of the prefabricated; the end of the open stirrup 113 in the vertical post-cast section 3 is provided with a hook to enhance the anchoring performance in the vertical post-cast section.

Arranging vertical stressed steel bars 111 of prefabricated wall edge components in a prefabricated concrete wall plate 14 far away from the vertical post-pouring section 3 in the prefabricated wall edge component area 11, arranging vertical constructed steel bars 112 of the prefabricated wall edge components at the bending position close to the opening stirrups 113, and arranging double rows of additional connecting steel bars 115 of the vertical stressed steel bars of the prefabricated wall edge components at the floor position of the cavity 15 to be in lap joint with the vertical stressed steel bars 111 of the prefabricated wall edge components on the upper layer and the lower layer; or the prefabricated wall edge member vertical structural steel bars 112, the opening stirrups 113 and the prefabricated wall edge member tie bars 114 are only configured in the prefabricated wall edge member area 11 to form a steel bar framework, the single-row large-diameter edge member vertical stress steel bars 117 are configured in the cavity 15 of the prefabricated wall edge member area 11, and the large-diameter edge member vertical stress steel bars 117 are vertically communicated in the cavity 15 and are arranged along the thickness center line of the wall body to participate in structural stress calculation.

The total reinforcement distribution area of the vertical stress steel bars 111 of the edge component of the prefabricated wall and the vertical stress steel bars 117 of the large-diameter edge component meets the checking calculation requirement of the bending resistance bearing capacity of the shear wall, or replaces a plurality of vertical steel bars of the edge component of the traditional shear wall according to the principle of equal-area replacement of the steel bars with the same strength grade, or meets the requirement of the current specification on the minimum reinforcement distribution rate of the vertical steel bars of the edge component; the vertical stressed steel bars 117 of the upper and lower layer large-diameter edge members are connected by steel bar joints 32, and the steel bar joints 32 are arranged at the same height or staggered by a certain distance.

Lay horizontal distribution reinforcing bar 121 in no entrance to a cave prefabricated wall 2, wherein: one end of the horizontal distribution steel bar 121 close to the vertical post-pouring section 3 does not extend out, and the prefabricated wall 2 without the opening is connected with the vertical post-pouring section 3 through a horizontal connection steel bar 35 arranged in the cavity 15 in a penetrating manner; or one end of the horizontally distributed reinforcing steel bars 121 close to the vertical post-pouring section 3 is bent at the end part of the prefabricated wall without the opening 2 and then extends into the vertical post-pouring section 3 through the cavity 15, the connection between the prefabricated wall without the opening 2 at the position of the longitudinal and transverse wall connecting node and the vertical post-pouring section 3 is realized by bending and extending the horizontally distributed reinforcing steel bars 124, the horizontally connected reinforcing steel bars 35 are not distributed in the cavity 15, and at the moment, the edge component area of one side wall limb where the prefabricated wall without the opening 2 is located is completely cast-in-place.

The edge component area of one side wall limb where the hole-free prefabricated wall 2 is located is completely cast-in-place edge component, and at the moment, the hole-free prefabricated wall 2 is not provided with a prefabricated wall edge component area 11; or, the edge component area of a side wall limb where the prefabricated wall 2 without the opening is located is realized by combining a prefabricated wall edge component area 11 and a vertical post-pouring section 3, the width of the vertical post-pouring section 3 is equal to the thickness of the wall body, the end part of the prefabricated wall 2 without the opening is provided with the prefabricated wall edge component area 11, a prefabricated wall edge component vertical construction steel bar 112 with a small diameter which does not extend out of the prefabricated wall 2 without the opening is arranged in the prefabricated wall edge component area 11, a prefabricated wall edge component vertical stress steel bar 111 with a common specification is not arranged, a prefabricated wall edge component stirrup 116 or a prefabricated wall edge component pull bar 114 is arranged to form a stirrup restraining effect on concrete in the prefabricated wall edge component area 11, and a prefabricated wall edge component vertical construction steel bar single-row additional connecting steel bar 118 is arranged at the floor position of the cavity 15 and is in lap joint with the prefabricated wall edge component vertical construction steel bars 112 of the upper.

When the end part of the prefabricated wall 2 without the opening is provided with the prefabricated wall edge component area 11, the edge component vertical steel bars which are originally arranged in the prefabricated wall edge component area 11 are intensively arranged in the vertical post-pouring section 3, the total area of the vertical post-pouring section edge component vertical steel bars 31 and the prefabricated wall edge component vertical construction steel bars 112 meets the checking and calculating requirement of the bending resistance bearing capacity of the shear wall, or replaces a plurality of edge component vertical steel bars of the traditional shear wall according to the principle of equal-area replacement of the steel bars with the same strength grade, or meets the requirement of the current specification on the minimum reinforcement ratio of the edge component vertical steel bars; at the moment, the vertical steel bars 31 of the edge component of the vertical post-cast section are connected by steel bar joints 32, and the steel bar joints 32 are arranged at the same height or staggered for a certain distance.

The diameter of the large-diameter edge member vertical stress steel bar 117 is not less than 14 mm; the diameter of the vertical constructional steel bar 112 of the prefabricated wall edge component is not more than 10mm, the vertical constructional steel bar is arranged in the prefabricated concrete wall panel 14, and the number of the vertical constructional steel bar is arranged according to the range of the prefabricated wall edge component area 11; when the length of the prefabricated wall edge component area 11 is not more than 300mm, 4 prefabricated wall edge component vertical construction steel bars 112 are arranged; when the length of the prefabricated wall edge component area 11 is 300-600 mm, 6 prefabricated wall edge component vertical construction steel bars 112 are arranged.

The horizontal connecting reinforcing steel bars 35 penetrate through the space between the vertical post-pouring section 3 and the prefabricated wall without the opening 2, the diameter of the horizontal distributing reinforcing steel bars 121 in the prefabricated wall without the opening 2 is not smaller than that of the horizontal distributing reinforcing steel bars 121 in the prefabricated wall without the opening 2, and the vertical distance is not larger than the distance between the horizontal distributing reinforcing steel bars 121.

A steel bar bottom lap joint section 17 is vertically distributed on the prefabricated wall in the cavity 15, a horizontal connecting steel bar 35 is a U-shaped steel bar, the open end of the U-shaped steel bar extends into the prefabricated wall 2 without the opening, and the closed end of the U-shaped steel bar is bound and positioned with a vertical post-pouring section edge member stirrup 33; the prefabricated wall in the cavity 15 is provided with an outer section 18 which is lapped at the bottom of the vertically distributed steel bars, and the horizontal connecting steel bars 35 are closed annular steel bars and U-shaped steel bars or U-shaped steel bars with hooks at the opening ends.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the prefabricated wall with the opening at the position of the connecting node of the longitudinal and transverse walls is connected with the vertical post-cast section by virtue of the stirrup extending out of the opening of the prefabricated wall with the opening, and special horizontal connecting steel bars do not need to be arranged in the cavity of the prefabricated wall with the opening, so that the problem of mutual interference between the horizontal connecting steel bars and the additional connecting steel bars of the vertical steel bars of the edge member in the cavity of the prefabricated wall with the opening in the existing structure can be avoided, and the vibration of the post-cast concrete in the cavity of the edge member area of the prefabricated.

(2) The opening stirrup does not directly extend out of the side surface of the precast concrete wall panel, so that no hole is formed in the side formwork in the precast wall production process, the standardization and the universalization of the precast wall mould are facilitated, the alignment problem of the opening stirrup of the precast wall edge component and the side formwork can be avoided, and the production efficiency of the precast wall is improved.

(3) The cavity of the prefabricated wall with the opening does not need to be internally provided with special horizontal connecting steel bars, the using amount of the steel bars is small, the field binding amount of the steel bars is small, and certain cost can be reduced.

(4) The size of the vertical post-pouring section at the connecting node of the longitudinal and transverse walls can be controlled to be equal to the thickness of the wall body, the range of the vertical post-pouring section is obviously reduced, the vertical steel bars, the stirrups and the horizontal connecting steel bars in the vertical post-pouring section have simple structures, the binding efficiency of the steel bars in the vertical post-pouring section is high, the on-site support modulus is small, and the on-site construction efficiency can be greatly improved.

(5) According to the prefabricated wall with the opening, the large-diameter vertical steel bars penetrating through the cavity can be adopted to avoid indirect overlapping of the vertical steel bars of the edge members, the use amount of the vertical steel bars of the edge members can be controlled, the mechanical connection technology of the steel bars is mature, the force transmission performance is good, and the anti-seismic performance of the wall under large deformation can be guaranteed.

Drawings

Fig. 1 is a three-dimensional schematic view of a typical structure of a stacked shear wall structure L-shaped node with a prefabricated wall at one side having a hole, in which vertical reinforcements of edge members of the prefabricated wall having the hole are indirectly connected by lap joint.

Fig. 2 is a three-dimensional schematic view of the prefabricated wall with an opening in fig. 1.

Fig. 3 is a schematic cross-sectional view of C-C in fig. 2.

Fig. 4 is a schematic sectional view of a bottom overlapping section a-a of the vertically distributed steel bars of the prefabricated wall with the L-shaped connecting nodes shown in fig. 1.

Fig. 5 is a schematic structural view of a horizontal joint of the prefabricated edge member region shown in fig. 1, wherein the prefabricated wall edge member vertical stressed reinforcing steel bars are arranged in the cavity and are in lap joint with double rows of additional connecting reinforcing steel bars of the prefabricated wall edge member vertical stressed reinforcing steel bars.

Fig. 6 is a schematic sectional view of a section B-B of the prefabricated wall with L-shaped connection nodes shown in fig. 1, wherein the horizontal connection steel bars are ring-shaped closed steel bars, except for the bottom lap joint of the vertically distributed steel bars.

Fig. 7 is a schematic sectional view of a section B-B of the prefabricated wall with L-shaped connection nodes shown in fig. 1, wherein the horizontal connection steel bars are U-shaped steel bars, and hooks are arranged at the open ends of the horizontal connection steel bars.

Fig. 8 is a schematic sectional view of a section B-B of the prefabricated wall with L-shaped connection nodes shown in fig. 1, wherein the horizontal connection steel bars are U-shaped steel bars, except for the bottom lap joint of the vertically distributed steel bars.

Fig. 9 is a first modification of the L-shaped connection node shown in fig. 1, in which large-diameter vertical load-bearing reinforcing bars are disposed in the cavity of the edge member of the prefabricated wall with an opening.

Fig. 10 is a three-dimensional schematic view of the prefabricated wall with an opening in fig. 9.

Fig. 11 is a schematic cross-sectional view E-E of fig. 10.

Fig. 12 is a schematic sectional view of a bottom overlapping section D-D of the vertically distributed steel bars of the prefabricated wall with the L-shaped connecting nodes shown in fig. 9.

Fig. 13 and 14 show a second modified form of the present invention, in which the horizontally distributed reinforcing bars of the prefabricated wall without openings are bent and extended.

Fig. 15 and 16 show a third modified form of the invention, in which only a small-size vertical post-cast section having a width equal to the thickness of the wall body is provided.

Fig. 17 is a schematic view of the lap joint structure of the vertical distribution reinforcing bars 122 and the double rows of additional connecting reinforcing bars 123 of the vertical distribution reinforcing bars in fig. 15 and 16.

Fig. 18 and 19 show the modified open stirrup of fig. 15 and 16, wherein the end of the open stirrup of the prefabricated wall edge component extending into the vertical post-pouring section is provided with a hook.

Fig. 20 is a schematic view of the existing construction of the stacked shear wall structure with L-shaped nodes and prefabricated walls on one side of the stacked shear wall structure as prefabricated walls with openings, namely a comparative example of the invention.

In the figure: 1-prefabricated wall with opening; 2-prefabricated wall without opening; 3-vertical post-pouring section; 11-prefabricated wall edge element area; 12-prefabricating a wall opening area; 13-prefabricating a wall body area; 14-precast concrete wall panels; 15-a cavity; 16-steel bar trusses; 17-vertically distributing steel bar bottom lap joint sections of the prefabricated wall; 18-overlapping the bottom of the vertically distributed steel bars of the prefabricated wall with other sections; 111-vertical stress steel bars of prefabricated wall edge components; 112-prefabricated wall edge member vertical construction steel bars; 113-open stirrup; 114-prefabricated wall edge member lacing wire; 115-prefabricated wall edge component vertical stress steel bar double-row additional connecting steel bar; 116-prefabricated wall edge member stirrups; 117-large diameter edge member vertical stressed steel bar; 118-adding connecting steel bars in a single row in the vertical structural steel bars of the prefabricated wall edge component; 121-horizontally distributing steel bars; 122-vertically distributing reinforcing steel bars; 123-vertically distributed reinforcing steel bars are added with two rows of connecting reinforcing steel bars; 124-bending and extending out horizontally distributed reinforcing steel bars; 31-vertical post-cast section edge member vertical steel bars; 32-rebar junctions; 33-vertical post-cast section edge member stirrup; 34-lacing a vertical post-pouring section edge member; 35-horizontally connecting reinforcing steel bars; 36-mounting a seam; 37-horizontally connecting reinforcing steel bars at the side of the hole; 41-horizontal joint of the bottom of the prefabricated wall; 42-horizontal post-cast strip at the top of the prefabricated wall; 43-prefabricating a floor.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1 to 19, the ribbed connecting node structure of the longitudinal and transverse walls of the superposed shear wall with the opening, provided by the invention, is used for connecting the longitudinal and transverse walls of the superposed shear wall structure with the longitudinal and transverse walls, and mainly comprises a prefabricated wall with the opening 1, a prefabricated wall without the opening 2 and a vertical post-pouring section 3, wherein the prefabricated wall with the opening 1 and the prefabricated wall without the opening 2 both comprise two layers of prefabricated concrete wall plates 14, a cavity 15 is formed between the two prefabricated concrete wall plates 14, the prefabricated wall with the opening 1 comprises a prefabricated wall opening area 12, and the prefabricated wall without the opening 2 comprises a prefabricated wall body area 13. The invention is optimized and improved in that the prefabricated wall with the opening 1 has a shorter side limb length of the prefabricated wall opening area 12, which is much less than 800mm, so that a prefabricated wall edge component area 11 directly connected with the vertical post-pouring section 3 is required to be arranged at the side end part.

The prefabricated wall edge member stirrup 116 of the prefabricated wall 1 with the opening is a combined stirrup which consists of an opening stirrup 113 and a prefabricated wall edge member tie bar 114. The opening end of the opening stirrup 113 is located in the vertical post-pouring section 3, the closed end of the opening stirrup is located in the prefabricated wall edge component area 11, the prefabricated wall with the hole 1 is bent nearby the end and extends into the vertical post-pouring section 3, and the prefabricated wall with the hole 1 is connected with the vertical post-pouring section 3 by means of the opening stirrup 113. Need not to lay special horizontal connection reinforcing bar in the cavity 15 of taking entrance to a cave prefabricated wall 1, avoid horizontal connection reinforcing bar and the additional connecting reinforcement mutual interference's of vertical reinforcing bar of the prefabricated wall cavity inward flange component of taking the entrance to a cave problem in the current structure. Opening stirrup 113 can further stretch into cavity 15 from precast concrete wallboard 14 inner wall in 1 side inboard of area entrance to a cave prefabricated wall, and then stretch out area entrance to a cave prefabricated wall 1, stretch into vertical post-cast section 3, and the non-direct stretches out from precast concrete wallboard 14 side, can realize that the prefabricated wall production process side forms does not trompil, be favorable to the standardization of prefabricated wall mould, the universalization, and can avoid the counterpoint problem of opening stirrup 113 and side forms in the prefabricated wall production process, improve prefabricated wall production efficiency.

Further, a 90 ° or 135 ° hook may be provided at the end of the open stirrup 113 extending into the vertical post-cast section 3 to enhance the anchoring performance thereof in the vertical post-cast section 3.

Accordingly, the vertical reinforcing bars of the prefabricated wall edge member region 11 of the prefabricated wall with opening 1 can adopt two configurations. Firstly, edge component vertical reinforcing steel bars can be in lap joint connection, prefabricated wall edge component vertical stress reinforcing steel bars 111 are arranged in a prefabricated concrete wall plate 14 far away from a vertical post-pouring section 3 in a prefabricated wall edge component area 11, double rows of additional connecting reinforcing steel bars 115 of the prefabricated wall edge component are arranged at the floor position of a cavity 15 and are in lap joint with the vertical stress reinforcing steel bars 111 of the prefabricated wall edge components on the upper layer and the lower layer, the double rows of additional connecting reinforcing steel bars 115 of the prefabricated wall edge component vertical stress reinforcing steel bars are not communicated up and down in the cavity 15, the length meets the requirement of reinforcing steel bar lap joint, and the diameter is not smaller than the vertical stress reinforcing steel bars 111 of; the vertical constructional steel bars 112 of the prefabricated wall edge members are arranged at the bending positions of the opening stirrups 113, do not extend out of the prefabricated wall, do not participate in structural stress, and have the diameter not larger than 10 mm.

Secondly, the vertical reinforcement structure of the prefabricated wall edge component area 11 of the prefabricated wall 1 with the opening can also be consistent with the patent of 'overlapping hidden post and prefabricated wall with large-diameter edge component vertical reinforcement arranged in a cavity' which is applied by the applicant (the prefabricated wall comprises an overlapping hidden post area and a wall body area, the overlapping hidden post is adopted in the overlapping hidden post area, the prefabricated concrete wall plates extend to form the wall body area, the overlapping hidden post comprises prefabricated concrete wall plates at two sides, a cavity is formed between the two prefabricated concrete wall plates, only small-diameter edge component vertical construction reinforcements, edge component stirrups and edge component lacing reinforcements are arranged in the prefabricated concrete wall plates to form a hidden post reinforcement framework, the upper end and the lower end of the edge component vertical construction reinforcements do not extend out of the prefabricated concrete wall plates and do not participate in structural stress calculation, single-row large-diameter vertical reinforcements are arranged in the cavity to serve as edge component vertical reinforcements, participate in structural stress calculation, the vertical stressed steel bars of the upper and lower layer edge members are directly connected by steel bar joints in the cavity, and concrete is poured in the cavity in situ). Only the vertical constructional steel bars 112 of the prefabricated wall edge component with small diameter (not participating in structural stress calculation, the diameter is not more than 10mm) are arranged in the prefabricated concrete wall plates 14 of the prefabricated wall edge component area 11, the vertical constructional steel bars of the edge component with common specification are not arranged, and the vertical constructional steel bars, the opening stirrups 113 and the prefabricated wall edge component tie bars 114 form a steel bar framework; a single-row large-diameter edge member vertical stress reinforcing steel bar 117 is arranged on one side of the cavity 15 close to the prefabricated wall opening area 12, penetrates up and down in the cavity 15, is arranged along the thickness center line of the wall body, and participates in structural stress calculation. When the calculated reinforcement area of the vertical reinforcement of the edge member is larger, the diameter of the reinforcement is larger due to the arrangement of two vertical stressed reinforcements 117 of the edge member with a large diameter, and three or more vertical stressed reinforcements 117 of the edge member can be arranged in the cavity 15 to control the diameter.

In particular, the vertical stressed steel bars 111 of the edge member of the prefabricated wall and the vertical stressed steel bars 117 of the large-diameter edge member are vertical stressed steel bars of the edge member area 11 of the prefabricated wall 1 with the opening, and the total area of the distributed steel bars should meet the checking requirement of the bending resistance bearing capacity of the shear wall, or replace a plurality of vertical steel bars of the edge member of the traditional shear wall according to the principle of equal area replacement of the steel bars of the same strength grade, or meet the requirement of the current standard on the minimum distributed steel bar rate of the vertical steel bars of the edge member. The vertical stressed steel bars 117 of the upper and lower layer large-diameter edge members are connected by steel bar joints 32, and the steel bar joints 32 can be arranged at the same height or staggered by a certain distance.

In the invention, the prefabricated wall 2 without the hole is constructed in two modes of extending and not extending horizontally distributed steel bars 121.

When horizontal distribution reinforcing bar 121 does not stretch out, no entrance to a cave prefabricated wall 2 realizes being connected through the horizontal connection reinforcing bar 35 of wearing to locate in the cavity 15 with vertical post-cast section 3. The edge component area of a side wall limb where the non-opening prefabricated wall 2 is located can be completely cast-in-place edge components, the non-opening prefabricated wall 2 is not provided with a prefabricated wall edge component area 11, the non-opening prefabricated wall 2 is consistent with a common superposed shear wall in structure, and the range of the vertical post-pouring section 3 should include the edge component range of the side wall limb where the non-opening prefabricated wall 2 is located, which is suggested by the current specifications.

The edge component area of a side wall limb where the prefabricated wall 2 without the opening is also realized by combining the prefabricated wall edge component area 11 and the vertical post-pouring section 3, the width of the vertical post-pouring section 3 is equal to the thickness of the wall body, a mounting seam 36 is arranged between the prefabricated wall 1 with the opening and the prefabricated wall 2 without the opening, the width of the mounting seam 36 is not less than 20mm, so that the mounting efficiency and the mounting precision of the prefabricated wall are ensured, and the template fixing tool for penetrating the vertical post-pouring section 3 is also used. The end part of a prefabricated wall 2 without an opening is provided with a prefabricated wall edge component area 11, the structure of the prefabricated wall edge component area 11 is consistent with that of the patent, a small-diameter prefabricated wall edge component vertical construction steel bar 112 which does not extend out of the prefabricated wall is configured in the prefabricated wall edge component area 11, a prefabricated wall edge component vertical stress steel bar 111 with a common specification is not configured, a prefabricated wall edge component stirrup 116 or a prefabricated wall edge component lacing wire 114 is configured to form a stirrup constraint effect on concrete in the prefabricated wall edge component area 11, and a prefabricated wall edge component vertical construction steel bar single-row additional connecting steel bar 118 is arranged at the floor position of a cavity 15 and is in lap joint with an upper prefabricated wall edge component vertical construction steel bar 112 and a lower prefabricated wall edge component vertical construction steel bar 112. The vertical reinforcing steel bars of the edge component originally arranged in the edge component area 11 of the prefabricated wall are intensively arranged in the small-sized vertical post-pouring section 3, the total area of the vertical post-pouring section edge component vertical reinforcing steel bars 31 and the vertical structural reinforcing steel bars 112 of the edge component of the prefabricated wall meets the checking requirement of the bending resistance bearing capacity of the shear wall, or a plurality of vertical reinforcing steel bars of the edge component of the traditional shear wall are replaced according to the principle of equal-area replacement of reinforcing steel bars with the same strength grade, or the requirement of the current specification on the minimum reinforcement ratio of the vertical reinforcing steel bars of the edge component is met. At this moment, the diameter of the vertical steel bar 31 of the edge member of the vertical post-cast section is often larger, the vertical post-cast section and the edge member are preferably connected by steel bar machinery, and the steel bar joints 32 can be arranged at the same height and can also be staggered by a certain distance. The reinforcement bar coupler 32 is preferably a straight threaded coupler, and other forms of reinforcement bar coupler may be used with technical reliability.

When the length of the prefabricated wall edge component area 11 of the prefabricated wall 2 without the opening is not more than 300mm, 4 prefabricated wall edge component vertical construction steel bars 112 can be arranged; when the length of the prefabricated wall edge member area 11 is 300-600 mm, 6 prefabricated wall edge member vertical construction steel bars 112 can be arranged. The diameter of the vertical stressed steel bar 117 of the large-diameter edge component is not smaller than 14 mm; the diameter of the vertical constructional steel bar 112 of the prefabricated wall edge component is not more than 10mm, and the vertical constructional steel bar is arranged in the prefabricated concrete wall panel 14, and the number of the vertical constructional steel bar is arranged according to the range of the prefabricated wall edge component area 11; the 4 or 6 prefabricated wall edge member vertical construction steel bars 112 can be respectively connected with the single row of additional vertical connecting steel bars 118 of 1 or 2 prefabricated wall edge member vertical construction steel bars in a lap joint mode.

Particularly, the diameter of the horizontal connecting steel bars 35 between the prefabricated wall without opening 2 and the vertical post-cast section 3 is not smaller than the diameter of the horizontal distribution steel bars 121 in the prefabricated wall without opening 2, and the vertical distance is not larger than the distance of the horizontal distribution steel bars 121. The bottom of the vertical steel bar in the cavity is in a lap joint section, the horizontal connecting steel bar 35 is preferably a U-shaped steel bar, the open end of the horizontal connecting steel bar extends into the prefabricated wall 2 without the opening, and the closed end of the horizontal connecting steel bar is bound and positioned with the vertical post-pouring section edge member stirrup 33; in the section except the lapping of the bottom of the vertical steel bar in the cavity, the horizontal connecting steel bar 35 can adopt a closed annular steel bar, a U-shaped steel bar with a hook at the opening end or a U-shaped steel bar.

When horizontal distribution reinforcing bar 121 does not stretch out, can refer to the structure of prefabricated edge component opening stirrup 113 of area entrance to a cave prefabricated wall 1, horizontal distribution reinforcing bar 121 is close to the one end of vertical post-pouring section 3 and stretches into vertical post-pouring section 3 through cavity 15 after no entrance to a cave prefabricated wall 2 tip is buckled, stretch out horizontal distribution reinforcing bar 124 with the help of buckling and realize that vertical and horizontal wall connected node position does not have entrance to a cave prefabricated wall 2 and vertical post-pouring section 3's being connected, can not lay horizontal connection reinforcing bar 35 in cavity 15, the edge component region of the side wall limb that no entrance to a cave prefabricated wall 2 is located this moment can all adopt cast-in-place edge component.

In the invention, the diameter and the structure of the stirrups or the tie bars in the prefabricated wall edge component area 11 and the vertical post-cast section 3 meet the relevant regulations of the existing standard building earthquake-resistant design standard and the technical specification of high-rise building concrete structure so as to ensure the stirrup restraint effect of concrete.

In the invention, the prefabricated concrete wallboards 14 at two sides of the prefabricated wall 1 with the opening and the prefabricated wall 2 without the opening can be connected by adopting the steel bar truss 16, and can also be connected by adopting the concrete longitudinal ribs or the plane steel bar welding net, namely the invention can be used for the longitudinal and transverse wall connecting nodes of the existing superposed shear walls such as the double-sided superposed shear wall, the SPCS steel bar welding net superposed shear wall and the like.

Fig. 1 to 8 show a first preferred embodiment of the invention, which is used for an L-shaped node of a stacked shear wall structure, wherein a prefabricated wall 1 with a hole is arranged on one side of a vertical post-cast section 3, and a prefabricated wall 2 without a hole is arranged on the other side. As shown in fig. 2 and 3, the prefabricated edge member stirrup of the prefabricated wall with opening 1 adopts a combined stirrup, and the combined stirrup is composed of an opening stirrup 113 and a prefabricated wall edge member tie bar 114. The open stirrups 113 are bent near the end of the prefabricated wall, and extend into the cavity 15 from the inner wall of the prefabricated concrete wall panel 14 at the inner side of the side edge of the prefabricated wall, and further extend out of the prefabricated wall 1 with the opening. As shown in fig. 1 and 4, the opening stirrups 113 extend into the vertical post-cast section 3 to realize the connection between the prefabricated wall with opening 1 and the vertical post-cast section 3, and special horizontal connecting steel bars do not need to be arranged in the cavity 15 of the prefabricated wall with opening 1.

As shown in fig. 1 to 4, the prefabricated wall edge member vertical stress steel bars 111 are arranged in the prefabricated concrete wall panel 14 of the prefabricated wall edge member area 11 of the prefabricated wall 1 with the opening, the prefabricated wall edge member vertical structural steel bars 112 with the diameter not greater than 10mm are arranged at the bending positions of the opening stirrups 113, and the prefabricated wall edge member vertical stress steel bars 111 and the prefabricated wall edge member vertical structural steel bars 112 do not extend out of the prefabricated wall. As shown in fig. 5, the prefabricated wall edge member vertical stressed steel bar double-row additional connecting steel bars 115 are arranged at the floor position of the cavity 15 and are in lap joint with the prefabricated wall edge member vertical stressed steel bars 111 on the upper layer and the lower layer, the prefabricated wall edge member vertical stressed steel bar double-row additional connecting steel bars 115 are not communicated up and down in the cavity 15, the length meets the steel bar lap joint requirement, and the diameter is not smaller than the prefabricated wall edge member vertical stressed steel bars 111. The vertical stressed steel bars 111 of the edge components of the prefabricated wall participate in structural stress, the total area of the reinforcing bars of the prefabricated wall should meet the checking calculation requirement of the bending resistance bearing capacity of the shear wall, or a plurality of vertical steel bars of the edge components of the traditional shear wall are replaced according to the principle of equal-area replacement of the same strength grade steel bars, or the requirement of the current standard on the minimum reinforcing ratio of the vertical steel bars of the edge components is met. The vertical constructional steel bars 112 of the edge members of the prefabricated walls on the upper layer and the lower layer are not connected and do not participate in structural stress. In fig. 5, the height of the horizontal seam 41 at the bottom of the prefabricated wall is not lower than 50mm, and the connection between the prefabricated wall and the prefabricated floor slabs 43 at two sides is realized through the horizontal post-cast strip 42 at the top of the prefabricated wall.

The edge member area of a side wall limb where the non-opening side prefabricated wall 2 is located is completely cast-in-place edge member, namely the range of the vertical post-pouring section 3 should include the edge member range of a side wall limb where the non-opening side prefabricated wall 2 is located, which is suggested by the current specifications. Horizontal distribution reinforcing steel bars 121 of the non-opening side prefabricated wall 2 do not extend out, horizontal connection reinforcing steel bars 35 are arranged in the cavity 15 in a penetrating mode to achieve connection of the non-opening side prefabricated wall 2 and the vertical post-pouring section 3, the diameter of the horizontal distribution reinforcing steel bars 121 in the non-opening side prefabricated wall 2 is not smaller than the diameter of the horizontal distribution reinforcing steel bars 121 in the non-opening side prefabricated wall, and the vertical distance is not larger than the distance of the horizontal distribution reinforcing steel bars 121.

Particularly, as shown in fig. 4, the horizontal connecting steel bars 35 in the overlap joint section 17 at the bottom of the vertically distributed steel bars of the prefabricated wall should be U-shaped steel bars, the open ends of the horizontal connecting steel bars extend into the prefabricated wall 2 without the opening, the closed ends of the horizontal connecting steel bars are bound and positioned with the stirrups 33 of the edge members of the vertical post-pouring section, and the double rows of additional connecting steel bars 123 of the vertically distributed steel bars within the range of the horizontal connecting steel bars 35 should be arranged at the inner sides of the horizontal connecting steel bars 35; as shown in fig. 6 to 8, the horizontal connecting steel bars 35 in the section 18 outside the bottom lap joint of the vertically distributed steel bars of the prefabricated wall may be closed ring-shaped steel bars, U-shaped steel bars with hooks at the open ends, or U-shaped steel bars.

The diameter and the structure of the edge member stirrup 33 and the vertical post-casting section edge member lacing bar 34 in the vertical post-casting section 3 meet the relevant regulations of the existing specification building earthquake-resistant design specification, high-rise building concrete structure technical specification, and the total area of the vertical post-casting section edge member vertical steel bars 31 meets the requirements of shear wall bending resistance bearing capacity checking calculation and the minimum reinforcement ratio of the existing specification to the edge member vertical steel bars. The vertical steel bars 31 of the edge components of the upper and lower layers of vertical post-cast sections are preferably connected by steel bar joints 32, and the steel bar joints 32 can be arranged at the same height or staggered by a certain distance; when the diameter is smaller, binding and lap joint can be adopted, and the relative relation between the edge member stirrup 33 in the vertical post-pouring section 3 and the prefabricated wall 1 with the opening needs to be noticed.

The site operation process of the first preferred embodiment is as follows: mounting the prefabricated wall with the opening 1 and the prefabricated wall without the opening 2, and adjusting the verticality and the levelness of the prefabricated walls; binding a vertical post-pouring section edge member stirrup 33 by means of a stretching section of the prefabricated wall opening stirrup 113, penetrating a vertical steel bar 31 of a vertical post-pouring section edge member and completing steel bar joint connection; binding an inner edge member lacing wire 34 of the vertical post-pouring section, penetrating a horizontal connecting reinforcing steel bar 35 and binding and positioning with a stirrup 33 of the edge member of the vertical post-pouring section; erecting a vertical post-pouring section 3 template, and arranging vertical stressed reinforcing steel bar double-row additional connecting reinforcing steel bars 115 of a prefabricated wall edge component of the prefabricated wall with the opening 1 and vertical distributed reinforcing steel bar double-row additional connecting reinforcing steel bars 123 of the prefabricated wall without the opening 2 at corresponding positions above a cavity 15 of the prefabricated wall; and the post-cast concrete in the casting cavity 15 and the vertical post-cast section 3 is used for realizing the connection of the prefabricated wall with the opening 1 and the prefabricated wall without the opening 2, and maintaining and removing the formwork.

Fig. 9 to 12 show a first improvement of the first preferred embodiment of the present invention, and on the basis of the first preferred embodiment, the vertical reinforcement structure of the prefabricated wall edge member area 11 of the prefabricated wall 1 with an opening is optimized and improved, and the structure is in accordance with the patent of the inventor, namely the superposed hidden column and prefabricated wall with the vertical reinforcement of the edge member with large diameter arranged in the cavity. As shown in fig. 10 and 11, the prefabricated concrete wall panel 14 of the prefabricated wall edge member area 11 of the prefabricated wall 1 with the opening is internally provided with prefabricated wall edge member vertical construction steel bars 112 with the diameter not more than 10mm, edge member vertical steel bars with common specifications are not arranged, and the prefabricated wall edge member vertical construction steel bars, the opening stirrups 113 and the prefabricated wall edge member tie bars 114 form a steel bar framework. As shown in fig. 9 and 12, a single row of large-diameter edge member vertical stress steel bars 117 are arranged on one side of the cavity 15 close to the prefabricated wall opening area 12, penetrate through the cavity 15 up and down, and are arranged along the thickness center line of the wall body to participate in structural stress calculation. When the calculated reinforcement area of the vertical reinforcement of the edge member is larger, the diameter of the reinforcement is larger due to the arrangement of two vertical stressed reinforcements 117 of the edge member with a large diameter, and three or more vertical stressed reinforcements 117 of the edge member can be arranged in the cavity 15 to control the diameter.

The large-diameter edge member vertical stress reinforcing steel bars 117 are edge member vertical stress reinforcing steel bars of the edge member area 11 of the prefabricated wall with the opening 1, and the total reinforcing steel bar area of the large-diameter edge member vertical stress reinforcing steel bars meets the bending resistance bearing capacity checking requirement of the shear wall, or replaces a plurality of edge member vertical reinforcing steel bars of the traditional shear wall according to the principle of equal-area replacement of reinforcing steel bars with the same strength grade, or meets the requirement of the current specification on the minimum reinforcing steel bar rate of the edge member vertical reinforcing steel bars. The vertical stressed steel bars 117 of the large-diameter edge members of the prefabricated walls of the upper layer and the lower layer are connected by steel bar joints 32, and the steel bar joints 32 can be arranged at the same height or staggered by a certain distance.

The field construction process of the first improvement is as follows: connecting the vertical stressed steel bars 117 of the large-diameter edge component on the layer of the prefabricated wall 1 with the vertical stressed steel bars 117 of the large-diameter edge component extending out of the lower layer by using steel bar joints 32; installing the prefabricated wall with the opening 1 and the prefabricated wall without the opening 2, adjusting the verticality and the levelness of the prefabricated wall, and paying attention to prevent the vertical stress steel bars 117 of the large-diameter edge member from interfering the falling of the prefabricated wall with the opening 1; the subsequent construction process is substantially the same as in the preferred embodiment. The large-diameter edge member vertical stress reinforcing steel bars 117 can also be arranged in a penetrating manner after the prefabricated wall 1 with the opening is installed, and the structure and the construction sequence of the installation holes reserved at the bottom of the prefabricated wall 1 with the opening refer to the patent of 'overlapping hidden columns and prefabricated walls with large-diameter edge member vertical reinforcing steel bars arranged in cavities' applied by the inventor.

Fig. 13 and 14 show a second improvement of the present invention, based on the first improvement of the first preferred embodiment, referring to the structure of the prefabricated edge member opening stirrup 113 of the prefabricated wall with opening 1, the horizontally distributed reinforcing steel bars of the prefabricated wall without opening 2 are bent at the end of the prefabricated wall and then extend into the vertical post-cast section 3 through the prefabricated wall cavity 15, the connection between the prefabricated wall without opening 2 and the vertical post-cast section 3 is realized by bending the horizontally distributed reinforcing steel bars 124, the horizontally connected reinforcing steel bars 35 are not arranged in the cavity 15, and the edge member area of one side wall limb where the prefabricated wall without opening 2 is preferably all cast-in-place edge members. The on-site construction sequence of the second improved type is basically consistent with that of the first improved type in the preferred embodiment.

Fig. 15 to 17 show a third modified version of the present invention, which optimizes and improves the structure of prefabricated wall 2 without opening based on the first modified version. The edge member area of a side wall limb of the hole-free prefabricated wall 2 is formed by combining the prefabricated wall edge member area 11 and the vertical post-pouring section 3, the width of the vertical post-pouring section 3 is equal to the thickness of the wall body, and the size is obviously reduced. Set up installation seam 36 between prefabricated wall 1 of area entrance to a cave and the prefabricated wall 2 of no entrance to a cave, the width of installation seam 36 should not be less than 20mm to guarantee prefabricated wall installation effectiveness and precision, be used for wearing to establish the fixed frock of template of vertical post-cast section 3 simultaneously.

In order to ensure the stress performance of the improved three-edge component area, referring to a patent of 'efficient connection node structure of longitudinal and transverse walls of a superposed shear wall with centralized reinforcement at a vertical post-pouring section' applied by the inventor, the prefabricated wall edge component area 11 is arranged at the end part of the prefabricated wall 2 without an opening, the vertical construction reinforcement 112 of the prefabricated wall edge component with small diameter which does not extend out of the prefabricated wall is arranged inside the prefabricated wall edge component area, and the prefabricated edge component stirrups 116 or the tie bars 114 are arranged to form a stirrup restraining effect on concrete in the prefabricated wall edge component area 11.

As shown in fig. 17, a single row of additional connecting steel bars 118 of the prefabricated wall edge member vertical structural steel bars are arranged at the floor position of the cavity 15, and are connected with the vertical structural steel bars 112 of the prefabricated wall edge member on the upper layer and the lower layer in a lap joint manner, and vertical distribution steel bars 122 and double rows of additional connecting steel bars 123 of the vertical distribution steel bars are also shown. When the length of the prefabricated wall edge component area 11 of the prefabricated wall 2 without the opening is not more than 300mm, 4 prefabricated wall edge component vertical construction steel bars 112 can be arranged; when the length of the prefabricated wall edge member area 11 is 300-600 mm, 6 prefabricated wall edge member vertical construction steel bars 112 can be arranged. The diameter of the vertical construction steel bar 112 of the prefabricated wall edge component is not more than 10mm, and 1 or 2 vertical construction steel bars 118 can be respectively adopted for 4 or 6 vertical construction steel bars 112 of the prefabricated wall edge component.

The vertical reinforcing steel bars of the edge component which are originally arranged in the edge component area 11 of the prefabricated wall are intensively arranged in the small-size vertical post-pouring section 3, the total area of the vertical reinforcing steel bars 31 of the edge component of the vertical post-pouring section and the vertical constructional reinforcing steel bars 112 of the edge component of the prefabricated wall can meet the checking requirement of the bending resistance bearing capacity of the shear wall, or a plurality of vertical reinforcing steel bars of the edge component of the traditional shear wall can be replaced according to the principle of equal area replacement of reinforcing steel bars with the same strength grade, or the requirement of the current specification on the minimum reinforcement ratio of the vertical reinforcing steel bars of the edge. The diameter of vertical reinforcing steel bar 31 of vertical post-cast section edge component is often great, should adopt reinforcing steel bar mechanical connection, and the steel bar joint 32 can arrange at same height, also can stagger certain distance.

The on-site construction sequence of the third improved type is basically consistent with that of the first improved type in the preferred embodiment.

Fig. 18 and 19 show a modified open stirrup of the third modified type, and on the basis of the third modified type, a hook of 90 degrees or 135 degrees is arranged at the end part of the open stirrup 113 extending into the vertical post-pouring section 3 so as to enhance the anchoring performance of the open stirrup in the vertical post-pouring section 3.

Fig. 20 shows a corresponding prior art connection node structure according to the preferred embodiment of the present invention, i.e. a first comparison example, in which the horizontal connection bars 37 at the opening side are located inside the vertical force-bearing steel bars of the prefabricated wall edge member double rows of additional connection bars 115. The third modification of the present invention was compared with the first comparative example shown in fig. 20, and is shown in table 1.

TABLE 1

In conclusion, the invention discloses a rib-outlet connecting node structure for the side surfaces of longitudinal and transverse walls of a superposed shear wall with a hole, wherein a prefabricated edge component stirrup of a prefabricated wall with the hole adopts a combined stirrup, an opening stirrup of the combined stirrup stretches into a vertical post-pouring section connected with the prefabricated wall through a cavity of the prefabricated wall after being bent, and the prefabricated wall with the hole and the vertical post-pouring section at the position of the connecting node of the longitudinal and transverse walls are connected by virtue of the opening stirrup. According to the prefabricated wall with the opening, special horizontal connecting steel bars do not need to be arranged in the cavity, the problem that the horizontal connecting steel bars and vertical steel bars of edge components of the prefabricated wall with the opening in the existing structure are interfered with each other can be solved, and a vibrating space can be ensured when post-cast concrete is poured in the cavity of the edge components of the prefabricated wall with the opening; meanwhile, the side face is provided with the ribs, so that the side wall die opening of the prefabricated wall can be avoided, the standardization and the universalization of the prefabricated wall die are facilitated, the alignment problem of the side face ribs and the side die can be avoided, and the production efficiency of the prefabricated wall can be improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A rib-outlet connection node structure of longitudinal and transverse walls of a superposed shear wall with a hole mainly comprises a prefabricated wall with a hole (1), a prefabricated wall without a hole (2) and a vertical post-pouring section (3), wherein the prefabricated wall with a hole (1) and the prefabricated wall without a hole (2) both comprise two layers of prefabricated concrete wallboards (14), and a cavity (15) is formed between the two prefabricated concrete wallboards (14), the structure is characterized in that a prefabricated wall edge component area (11) is arranged on one side of the hole of the prefabricated wall with a hole (1) and is directly connected with the vertical post-pouring section (3), a prefabricated wall edge component stirrup (116) of the prefabricated wall with a hole (1) adopts a combined stirrup, an opening stirrup (113) of the combined stirrup stretches into the vertical post-pouring section (3) through the cavity (15) after the end part of the prefabricated wall with the hole (1) is bent, and the connection between the prefabricated wall with the vertical post-pouring section (3) and the position of the longitudinal wall connection node with the hole is realized by means of the stretching out section of the opening stirrup (113), the cavity (15) of the prefabricated wall (1) with the opening is not required to be internally provided with horizontal connecting steel bars.

2. The structure of the reinforcement-extending connection node on the side surface of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 1, is characterized in that the opening end of the opening stirrup (113) is positioned in the vertical post-pouring section (3), the opening end of the opening stirrup (113) extends into the cavity (15) from the inner wall of the precast concrete wall panel (14) inside the side end part of the prefabricated wall with the opening (1), the opening end of the opening stirrup extends into the vertical post-pouring section (3) through the cavity (15), but does not directly extend into the vertical post-pouring section (3) from the side surface of the precast concrete wall panel (14), and one end of the opening stirrup (113) positioned in the vertical post-pouring section (3) is provided with a hook to enhance the anchoring performance in the vertical post-pouring section.

3. The structure of the rib-extending connection node on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 1, is characterized in that the prefabricated wall edge member vertical stress steel bars (111) are arranged in the prefabricated concrete wall plate (14) far away from the vertical post-pouring section (3) in the prefabricated wall edge member area (11) of the prefabricated wall with the opening (1), the prefabricated wall edge member vertical structure steel bars (112) are arranged at the position close to the bending position of the opening stirrup (113), and the prefabricated wall edge member vertical stress steel bar double-row additional connection steel bars (115) are arranged at the floor position of the cavity (15) and are in lap joint with the prefabricated wall edge member vertical stress steel bars (111) on the upper layer and the lower layer; or only arranging vertical constructional steel bars (112) of the prefabricated wall edge components, opening stirrups (113) and prefabricated wall edge component tie bars (114) in the prefabricated wall edge component area (11) to form a steel bar framework, arranging vertical stressed steel bars (117) of the single-row large-diameter edge components in a cavity (15) of the prefabricated wall edge component area (11), enabling the vertical stressed steel bars (117) of the large-diameter edge components to penetrate through the cavity (15) up and down and be arranged along the thickness center line of the wall body, and participating in structural stress calculation.

4. The structure of the rib-extending connection node on the side surface of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 3, wherein the total area of the reinforcing bars of the vertical stress reinforcing bars (111) of the edge member of the prefabricated wall and the vertical stress reinforcing bars (117) of the large-diameter edge member meets the calculation requirement of the bending resistance bearing capacity of the shear wall, or replaces a plurality of vertical reinforcing bars of the edge member of the traditional shear wall according to the principle of equal-area replacement of reinforcing bars of the same strength grade, or meets the requirement of the current specification on the minimum reinforcing ratio of the vertical reinforcing bars of the edge member; the vertical stressed steel bars (117) of the upper and lower layer large-diameter edge members are connected by steel bar joints (32), and the steel bar joints (32) are arranged at the same height or staggered for a certain distance.

5. The structure of the ribbed connection node on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 4, wherein the diameter of the vertical stress reinforcing steel bar (117) of the large-diameter edge member is not less than 14 mm; the diameter of the vertical constructional steel bar (112) of the prefabricated wall edge component is not more than 10mm, the vertical constructional steel bar is arranged in the prefabricated concrete wall panel (14), and the number of the vertical constructional steel bar is arranged according to the range of the prefabricated wall edge component area (11); when the length of the prefabricated wall edge component area (11) is not more than 300mm, 4 prefabricated wall edge component vertical construction steel bars (112) are arranged; when the length of the prefabricated wall edge member area (11) is 300-600 mm, 6 prefabricated wall edge member vertical construction steel bars (112) are arranged.

6. The structure of the ribbed connection node on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 1, wherein horizontally distributed reinforcing steel bars (121) are arranged in the prefabricated wall (2) without the opening, and the structure comprises: one end of the horizontally distributed reinforcing steel bars (121) close to the vertical post-pouring section (3) does not extend out, and the prefabricated wall without the opening (2) is connected with the vertical post-pouring section (3) through the horizontally connected reinforcing steel bars (35) arranged in the cavity (15) in a penetrating manner; or one end of the horizontally distributed reinforcing steel bars (121) close to the vertical post-pouring section (3) is bent at the end part of the prefabricated wall (2) without the opening and then extends into the vertical post-pouring section (3) through the cavity (15), the connection between the prefabricated wall (2) without the opening and the vertical post-pouring section (3) at the position of the connection node of the longitudinal and transverse walls is realized by bending and extending out the horizontally distributed reinforcing steel bars (124), the horizontally distributed reinforcing steel bars (35) are not arranged in the cavity (15), and the edge component area of one side wall limb where the prefabricated wall (2) without the opening is located is completely cast-in-place edge components.

7. The structure of the ribbed connection node on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 1 or 6, wherein the edge component area of one side wall limb where the prefabricated wall (2) without the opening is located is completely cast-in-place edge components, and the prefabricated wall edge component area (11) is not arranged on the prefabricated wall (2) without the opening; or the edge component area of a side wall limb where the prefabricated wall (2) without the opening is realized by combining the prefabricated wall edge component area (11) and the vertical post-pouring section (3), the width of the vertical post-pouring section (3) is equal to the thickness of the wall body, the end part of the prefabricated wall (2) without the opening is provided with the prefabricated wall edge component area (11), the prefabricated wall edge component area (11) is internally provided with the vertical construction steel bars (112) of the prefabricated wall edge component with small diameter which do not extend out of the prefabricated wall (2) without the opening, the vertical stress steel bars (111) of the prefabricated wall edge component with common specification are not arranged, and the prefabricated wall edge component stirrups (116) or the prefabricated wall edge component pull bars (114) are arranged to form a stirrup restraining effect on the concrete of the prefabricated wall edge component area (11), and arranging single-row additional connecting steel bars (118) of the vertical structural steel bars of the prefabricated wall edge components at the floor position of the cavity (15) to be in lap joint with the vertical structural steel bars (112) of the prefabricated wall edge components on the upper layer and the lower layer.

8. The structure of the reinforcing connection node at the side face of the longitudinal and transverse walls of the opening-containing superposed shear wall according to claim 7, is characterized in that when the end of the opening-free precast wall (2) is provided with a precast wall edge member region (11), edge member vertical reinforcing steel bars originally arranged in the precast wall edge member region (11) are intensively arranged in the vertical post-pouring section (3), and the total area of the vertical post-pouring section edge member vertical reinforcing steel bars (31) and the precast wall edge member vertical construction reinforcing steel bars (112) meets the checking and calculation requirement of the bending resistance bearing capacity of the shear wall, or replaces a plurality of edge member vertical reinforcing steel bars of the traditional shear wall according to the principle of equal-area replacement of reinforcing steel bars of the same strength grade, or meets the minimum reinforcing ratio requirement of the current specification on the edge member vertical reinforcing steel bars; at the moment, the vertical steel bars (31) of the edge member of the vertical post-cast section are connected by steel bar joints (32), and the steel bar joints (32) are arranged at the same height or staggered for a certain distance.

9. The structure of the rib-extending connection node on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 6, wherein the horizontal connection steel bars (35) are arranged between the vertical post-pouring section (3) and the prefabricated wall without the opening (2) in a penetrating manner, the diameter of the horizontal connection steel bars is not less than that of the horizontally distributed steel bars (121) in the prefabricated wall without the opening (2), and the vertical distance is not more than that of the horizontally distributed steel bars (121).

10. The structure of the rib-extending connecting joint on the side surfaces of the longitudinal and transverse walls of the superposed shear wall with the opening according to claim 6 or 9, characterized in that a bottom lap joint section (17) of the reinforcing steel bars is vertically distributed on the prefabricated wall in the cavity (15), the horizontal connecting reinforcing steel bars (35) are U-shaped reinforcing steel bars, the opening ends of the horizontal connecting reinforcing steel bars extend into the prefabricated wall (2) without the opening, and the closed ends of the horizontal connecting reinforcing steel bars are bound and positioned with the vertical post-pouring section edge member stirrups (33); the prefabricated wall is characterized in that the section (18) outside the vertically distributed steel bars of the prefabricated wall in the cavity (15) is lapped, and the horizontal connecting steel bars (35) adopt closed annular steel bars and U-shaped steel bars or U-shaped steel bars with hooks at the opening ends.

Images